Write a note on lichens? class 9
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I hope this image will help u plz mark my answer as BRAINLIEST
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Lichen is an organism that is formed by the symbiotic association of a fungus and an alga or cyanobacterium and occurs as crusty patches or bushy growths on tree trunks, bare ground, etc. . ... The fungal partner protects the alga by retaining water.
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